[Lady Fitzgerald]

I voted fiction since that has the clear majority right now. However, once I have scanned all my sheet music and break my songbooks down to sheet music and add them and tech articles to my libraries, non-fiction will be pulling a close second.

I can guess where you are heading from this poll. While having the Dewey Decimal numbers for books could be useful for some folks, especially those whose libraries are mostly textbook style books, I feel it would be of little use for me since, besides not having many books that have an easily determined Dewey Decimal number, the Dewey Decimal System puts books only in a single category whereas tags allow multiple classifications. Granted, the tags gathered from social media are frequently inadequate, inconsistent, and/or nonexsistent but they can be updated. I don't find updating them to be too big a problem since I'm adding books one at a time.

I'm thinkin' a poll that directly asked if users would want a mechanism to find and download a Dewey Decimal number when adding a book to calibre would be more effective for determining if it would be worth the effort for a calibre developer to add such a function.